The sand making machine integrates three crushing modes, and can continuously work for 720 hours. Higher crushing chamber, greater crushing impact. During the parts and material procurement, production and processing, the quality is strictly controlled. Wearing parts is optimally allocated for longer service life.

Working principle:The materials go into the crusher from the feed hopper and are separated into two parts by the distributor. One part goes into the impeller rotating with high speed from the middle of the distributor, and is quickened inside the impeller, and the acceleration can reach hundred times of the acceleration of gravity, and then the materials will cast from the three uniformly distributed runners of the impeller at a speed of 60-70m/s, and impact and crush with the other part of materials which fall from around the distributor and then they will together impact to the material lining inside the vortex cavity. Bounced from the material lining, the materials will impact obliquely upward to the top of the whirling motion chamber which will change their movement direction again, so that materials will move down, and the materials launching from the runners of the impeller will form a continuous material curtain. In this way, the materials will get two times or more hitting, friction, grinding and crushing effect inside the whirling motion crushing chamber. The crushed materials will be discharged from the bottom discharging mouth. This process will form a closed-circuit system together with the cyclic screening system and generally speaking, after three times of cycle, the materials will be crushed below 20Moh.

Advantages and Features:1. Simple structure, easy to set up and repair, low cost in operation;2. High production of crushing, has the function of fine crushing and rough grinding;3. Excellent shape of product, mainly the product shape is cubic with small fraction of elongated flaky particle shape, suitable for aggregate shaping, manufactured sand.4. It is little affected by the moisture content of materials, and the content can get up to about 8%.5. It is suitable to crush medium hard and ultra-hard materials.6. Working noise is lower than 75 decibel, less dust pollution.